Tightening technique

Built-In Nutrun­ners – DS Series

Error-free processes are the founda­tion of high-quality products – especi­ally in indus­trial manufac­tu­ring, where relia­bi­lity is the highest priority.

Screw connec­tions must not become a weak point.
To prevent errors from occur­ring in the first place, DSM’s digitally controlled built-in nutrun­ners ensure consis­t­ently high quality and maximum process relia­bi­lity.

All DSM products can be seamlessly integrated into new or existing produc­tion lines – delive­ring tailored solutions for statio­nary tightening techno­logy.

Our experts support you from planning and commis­sio­ning all the way to long-term assis­tance during ongoing opera­tion – compe­tent, practical, and reliable.

Statio­nary Tightening Techno­logy by DSM

  • Digital tightening systems for integra­tion into assembly lines
  • Built-in nutrun­ners from 0.05 Nm to 2400 Nm
  • Error-free setup through integrated parameter memory
  • Mainten­ance-free, brushless servo motor with clock­wise / counter­clock­wise rotation
  • Robust housing made of stain­less steel and aluminium
  • Flexible use thanks to a wide range of drive and output variants

Access­ories for DS Built-in Nutrun­ners
Expand your appli­ca­tion possi­bi­li­ties with proven access­ories for statio­nary tightening techno­logy: crowfoot gear units, tool change boxes, handling systems, as well as custo­mized technical solutions on request.
Our portfolio also includes complete worksta­tions – from ergonomic manual worksta­tions to semi-automated solutions.

▶ What’s the Right Torque for Your Appli­ca­tion?
Our “Bolt Tightening Torque Chart” provides tips and typical reference values for standard metric threads – a practical guide for selec­ting the right nutrunner.

Select a Series
for More Information:

0.05 – 4 Nm (4 versions)

DS 26

0.5 – 15 Nm (4 versions)

DS 34

0.5 – 35 Nm (5 versions)

DS 44

5 – 140 Nm (5 versions)

DS 57

44 – 600 Nm (5 versions)

DS 80

180 – 2400 Nm (5 versions)

DS 80–130

DS 26 Series

Statio­nary Tightening Tools for Fine Assembly Tasks

DS 26

Built-in nutrunner with electro­ni­cally controlled servo motor and digital data trans­mis­sion.
The DS-26 series is available in 0.5 Nm, 1 Nm, 2 Nm, and 4 Nm versions – either as MDW type (with digital torque sensor) or as current-controlled SA type.

Standard Equip­ment:

  • Status indica­tion via light field
  • Plug-and-play parameter transmission
  • Motor and gearbox integrated in an aluminum housing
  • Conti­nuously adjus­table speed, clock­wise / counter­clock­wise rotation
  • Fixed, without output – see standard options

MDW Control Type

  • Directly integrated torque measu­re­ment via DAkkS-calibrated digital sensor
  • Torque accuracy: 0.5% of final value
  • Tolerance accor­ding to ISO 5393: better than 5%
  • Angle measu­re­ment via motor sensors
  • Angle resolu­tion: 3.7° (DS26/005, 26/01); 2.6° (DS26/02);
    1.0° (DS26/04)

For more infor­ma­tion on calibra­tion and tracea­bi­lity, please refer to the “Calibra­tion” page.

SA Control Type

  • Indirect torque measu­re­ment via current-controlled shut-off
  • Torque accuracy depends on tool calibra­tion – adjus­t­ment via reference measu­re­ment and confi­gu­ra­tion on the MultiPro 3G
  • Regular reference measu­re­ments ensure accuracy
  • Angle detec­tion via motor sensors
  • Angle resolu­tion: 4.3° (DS26/005, 26/01); 2.1° (DS26/02);
    1.0° (DS26/04)
  • Cost-effec­tive solution for simple tightening tasks

Torque Ranges & Speeds

Versions Torque Range Speed (MDW) Speed (SA)
DS 26 / 005 0.05 – 0.5 Nm 1450 1/min 1700 1/min
DS 26 / 01 0.2 – 1 Nm 1450 1/min 1700 1/min
DS 26 / 02 0.4 – 2 Nm 1020 1/min 820 1/min
DS 26 / 04 0.8 – 4 Nm 400 1/min 400 1/min

Standard Options

  • Mounting flange
  • Direct output variant (without spring deflection)
  • Spring output with 20 mm or 50 mm spring deflection
  • Self start output with 5 mm spring deflec­tion – tightening process starts automa­ti­cally when compressed
  • Output offset (displaced output) with 20 mm spring deflec­tion – reduces center distance and improves acces­si­bi­lity in confined screw locations
  • Angle head with DIN 3126 D6.3 quick-change chuck
  • Vacuum screw holder
  • Output unit with galvanic isolation
  • Output features (1/4″ hex/square, quick-change chuck B3/B5.5/D6.3) – depen­ding on confi­gu­ra­tion, compa­tible with spring output, self-start output, or output offset
Data sheet DS 26 (PDF, 323KB)
Handschrauber DSH 26

DS 34 Series

Versa­tile Statio­nary Tightening Techno­logy in a Compact Format

DS 34

Built-in nutrunner with electro­ni­cally controlled servo motor and digital data trans­mis­sion.
The DS-34 series is available in 2.5 Nm, 5 Nm, 10 Nm, and 15 Nm versions – either as MDW type (with digital torque sensor) or as current-controlled SA type.

Standard Equip­ment:

  • Status indica­tion via light field
  • Plug-and-play parameter transmission
  • Motor and gearbox integrated in an aluminum housing
  • Conti­nuously adjus­table speed, clock­wise / counter­clock­wise rotation
  • Fixed, without output – see standard options

MDW Control Type

  • Directly integrated torque measu­re­ment via DAkkS-calibrated digital sensor
  • Torque accuracy: 0.5% of final value
  • Tolerance accor­ding to ISO 5393: better than 5%
  • Angle measu­re­ment via digital absolute encoder
  • Angle resolu­tion: 0.1°

For more infor­ma­tion on calibra­tion and tracea­bi­lity, please refer to the “Calibra­tion” page.

SA Control Type

  • Indirect torque measu­re­ment via current-controlled shut-off
  • Torque accuracy depends on tool calibra­tion – adjus­t­ment via reference measu­re­ment and confi­gu­ra­tion on the MultiPro 3G
  • Regular reference measu­re­ments ensure accuracy
  • Angle detec­tion via motor sensors
  • Angle resolu­tion: 3.3° (DS34/025, 34/05); 1.7° (DS34/10, 34/15)
  • Cost-effec­tive solution for simple tightening tasks

Torque Ranges & Speeds

Version Torque Range Speed
DS 34 / 025 MDW 0.5 – 2.5 Nm 880 1/min
DS 34 / 05 MDW or SA 1 – 5 Nm 880 1/min
DS 34 / 10 MDW or SA 2 – 10 Nm 1540 1/min
DS 34 / 15 MDW or SA 3 – 15 Nm 1540 1/min

Standard Options

  • Mounting flange
  • Direct output variant (without spring deflection)
  • Spring output with 30 mm or 50 mm spring deflection
  • Self start output with 30 mm or 50 mm spring deflec­tion – tightening process starts automa­ti­cally when compressed
  • Output offset (displaced output) – reduces center distance and improves acces­si­bi­lity in confined screw locations
  • Angle head with DIN 3121 F10 3/8“ male square drive
  • Output unit with galvanic isolation
  • Output features (1/4″ / 3/8″ square drive, D6.3–24 mm quick-change chuck) – compa­tible with direct mounting as well as with spring output, self-start output, and output offset
Data sheet DS 34 (PDF, 312KB)
Handschrauber DSH 26

DS 44 Series

Compact Statio­nary Nutrun­ners for Versa­tile Applications

DS 44

Built-in nutrunner with electro­ni­cally controlled servo motor and digital data trans­mis­sion.
The DS-44 series is available in 2.5 Nm, 5 Nm, 10 Nm, 20 Nm, and 35 Nm versions – either as MDW type (with digital torque sensor) or as current-controlled SA type.

Standard Equip­ment:

  • Status indica­tion via light field
  • Plug-and-play parameter transmission
  • Motor and gearbox integrated in an aluminum housing
  • Conti­nuously adjus­table speed, clock­wise / counter­clock­wise rotation
  • Fixed, without output – see standard options

MDW Control Type

  • Directly integrated torque measu­re­ment via DAkkS-calibrated digital sensor
  • Torque accuracy: 0.5% of final value
  • Tolerance accor­ding to ISO 5393: better than 5%
  • Angle measu­re­ment via digital absolute encoder
  • Angle resolu­tion: 0.1°

For more infor­ma­tion on calibra­tion and tracea­bi­lity, please refer to the “Calibra­tion” page.

SA Control Type

  • Indirect torque measu­re­ment via current-controlled shut-off
  • Torque accuracy depends on tool calibra­tion – adjus­t­ment via reference measu­re­ment and confi­gu­ra­tion on the MultiPro 3G
  • Regular reference measu­re­ments ensure accuracy
  • Angle detec­tion via motor sensors
  • Angle resolu­tion: 3.3° (DS44/05); 2.3° (DS44/10); 1.4° (DS44/20);
    1.0° (DS44/35)
  • Cost-effec­tive solution for simple tightening tasks

Torque Ranges & Speeds

Version Torque Range Speed
DS 44 / 025 MDW 0.5 – 2.5 Nm 1300 1/min
DS 44 / 05 MDW or SA 1 – 5 Nm 1300 1/min
DS 44 / 10 MDW or SA 2 – 10 Nm 900 1/min
DS 44 / 20 MDW or SA 4 – 20 Nm 530 1/min
DS 44 / 35 MDW or SA 7 – 35 Nm 480 1/min

Standard Options

  • Mounting flange
  • Direct output variant (without spring deflection)
  • Spring output with 30 mm or 50 mm spring deflection
  • Self start output – tightening process starts automa­ti­cally when compressed
  • Output offset (displaced output) – reduces center distance and improves acces­si­bi­lity in confined screw locations
  • Angle head with DIN 3121 F10 3/8“ male square drive
  • Output unit with galvanic isolation
  • Output features (1/4″ / 3/8″ square drive, D6.3–24 mm quick-change chuck) – compa­tible with direct mounting as well as with spring output, self-start output, and output offset
Data sheet DS 44 (PDF, 302KB)
Handschrauber DSH 26

DS 57 Series

Robust and Long-Lasting Statio­nary Nutrunners

DS 57

Built-in nutrunner with electro­ni­cally controlled servo motor and digital data trans­mis­sion.
The DS-57 series is available in 25 Nm, 50 Nm, 70 Nm, 90 Nm, and 140 Nm versions – either as MDW type (with digital torque sensor) or as current-controlled SA type.

Standard Equip­ment:

  • Status indica­tion via light field
  • Plug-and-play parameter transmission
  • Conti­nuously adjus­table speed, clock­wise / counter­clock­wise rotation
  • Compact design
  • Fixed, without output
  • Motor and output variants – see standard options

MDW Control Type

  • Directly integrated torque measu­re­ment via DAkkS-calibrated digital sensor
  • Torque accuracy: 0.5% of final value
  • Tolerance accor­ding to ISO 5393: better than 5%
  • Angle measu­re­ment via digital absolute encoder
  • Angle resolu­tion: 0.1°

For more infor­ma­tion on calibra­tion and tracea­bi­lity, please refer to the “Calibra­tion” page.

SA Control Type

  • Indirect torque measu­re­ment via current-controlled shut-off
  • Torque accuracy depends on tool calibra­tion – adjus­t­ment via reference measu­re­ment and confi­gu­ra­tion on the MultiPro 3G
  • Regular reference measu­re­ments ensure accuracy
  • Angle detec­tion via motor sensors
  • Angle resolu­tion: 4.5° (DS57/25, 57/50);
    2.2° (DS57/70); 1.2° (DS57/140)
  • Cost-effec­tive solution for simple tightening tasks

Torque Ranges & Speeds

Version Torque Range Speed
DS 57 / 25 MDW 5 – 25 Nm 650 1/min
DS 57 / 50 MDW or SA 10 – 50 Nm 800 1/min
DS 57 / 70 MDW or SA 14 – 70 Nm 800 1/min
DS 57 / 90 MDW 18 – 90 Nm 430 1/min
DS 57 / 140 MDW or SA 28 – 140 Nm 430 1/min

Standard Options

  • Motor Offset – side-mounted motor for a more compact design and shorter instal­la­tion length
  • Mounting flange
  • Direct output variant (without spring deflection)
  • Spring output with 50 mm or 100 mm spring deflec­tion, available with 3/8″ or 1/2″ square drive
  • Self-start output with 50 mm spring deflec­tion and 3/8″ or 1/2″ square drive – tightening process starts automa­ti­cally when compressed
  • Output offset (displaced output) – reduces center distance and improves acces­si­bi­lity in confined screw locations
  • Angle head with 1/2“ male square drive
Data sheet DS 57 (PDF, 285KB)
Handschrauber DSH 26

DS 80 Series

Powerful Statio­nary Nutrun­ners for High Torque Applications

DS 80

Built-in nutrunner with electro­ni­cally controlled servo motor and digital data trans­mis­sion.
The DS-80 series is available in 220 Nm, 300 Nm, 420 Nm, 500 Nm, and 600 Nm versions – either as MDW type (with digital torque sensor) or as current-controlled SA type.

Standard Equip­ment:

  • Status indica­tion via light field
  • Plug-and-play parameter transmission
  • Conti­nuously adjus­table speed, clock­wise / counter­clock­wise rotation
  • Compact design
  • Fixed, without output
  • Motor and output variants – see standard options

MDW Control Type

  • Directly integrated torque measu­re­ment via DAkkS-calibrated digital sensor
  • Torque accuracy: 0.5% of final value
  • Tolerance accor­ding to ISO 5393: better than 5%
  • Angle measu­re­ment via digital absolute encoder
  • Angle resolu­tion: 0.1°

For more infor­ma­tion on calibra­tion and tracea­bi­lity, please refer to the “Calibra­tion” page.

SA Control Type

  • Indirect torque measu­re­ment via current-controlled shut-off
  • Torque accuracy depends on tool calibra­tion – adjus­t­ment via reference measu­re­ment and confi­gu­ra­tion on the MultiPro 3G
  • Regular reference measu­re­ments ensure accuracy
  • Angle detec­tion via motor sensors
  • Angle resolu­tion: 1.2° (DS80/220, 80/300);
    1.0° (DS80/420, 80/500, 80/600)
  • Cost-effec­tive solution for simple tightening tasks

Torque Ranges & Speeds

Version Torque Range Speed
DS 80 / 220 MDW or SA 44 – 220 Nm 320 1/min
DS 80 / 300 MDW or SA 60 – 300 Nm 320 1/min
DS 80 / 420 MDW or SA 84 – 420 Nm 160 1/min
DS 80 / 500 MDW or SA 100 – 500 Nm 160 1/min
DS 80 / 600 MDW or SA 120 – 600 Nm 160 1/min

Standard Options

  • Motor Offset – side-mounted motor for a more compact design and shorter instal­la­tion length
  • Mounting flange
  • Direct output variant (without spring deflection)
  • Spring output with 50 mm, 100 mm, or 150 mm spring deflec­tion and 3/4″ square drive
  • Self-start output with 50 mm, 100 mm, or 150 mm spring deflec­tion and 3/4″ square drive – tightening process starts automa­ti­cally when compressed
  • Output offset (displaced output) – reduces center distance and improves acces­si­bi­lity in confined screw locations
  • Output offset available in two versions: with direct output (1″ square drive) or with 50 mm spring deflec­tion and 3/4″ square drive
  • Angle head (max. 220 Nm) with DIN 3121 F20 3/4“ male square drive
Data sheet DS 80 (PDF, 321KB)
Handschrauber DSH 26

DS 80–130 Series

Statio­nary Nutrun­ners with Gearbox Attach­ment for Heavy-Duty Use

DS 80-130

Built-in nutrunner with electro­ni­cally controlled servo motor and digital data trans­mis­sion.
The DS-80–130 series is available in 900 Nm, 1000 Nm, 1500 Nm, 2000 Nm, and 2400 Nm versions – either as MDW type (with digital torque sensor) or as current-controlled SA type.

Standard Equip­ment:

  • Status indica­tion via light field
  • Plug-and-play parameter transmission
  • Conti­nuously adjus­table speed, clock­wise / counter­clock­wise rotation
  • Compact design
  • Fixed, without output
  • Motor and output variants – see standard options

MDW Control Type

  • Directly integrated torque measu­re­ment via DAkkS-calibrated digital sensor
  • Torque accuracy: 0.5% of final value
  • Tolerance accor­ding to ISO 5393: better than 5%
  • Angle measu­re­ment via digital absolute encoder
  • Angle resolu­tion: 0.1°

For more infor­ma­tion on calibra­tion and tracea­bi­lity, please refer to the “Calibra­tion” page.

SA Control Type

  • Indirect torque measu­re­ment via current-controlled shut-off
  • Torque accuracy depends on tool calibra­tion – adjus­t­ment via reference measu­re­ment and confi­gu­ra­tion on the MultiPro 3G
  • Regular reference measu­re­ments ensure accuracy
  • Angle detec­tion via motor sensors
  • Angle resolu­tion: 1.0°
  • Cost-effec­tive solution for simple tightening tasks

Torque Ranges & Speeds

Version Torque Range Speed
DS 80–130 / 900 MDW or SA 180 – 900 Nm 75 1/min
DS 80–130 / 1000 MDW or SA 200 – 1000 Nm 75 1/min
DS 80–130 / 1500 MDW or SA 300 – 1500 Nm 75 1/min
DS 80–130 / 2000 MDW or SA 400 – 2000 Nm 37 1/min
DS 80–130 / 2400 MDW or SA 480 – 2400 Nm 37 1/min

Standard Options

  • Motor Offset – side-mounted motor for a more compact design and shorter instal­la­tion length
  • Mounting flange
  • Direct output variant (without spring deflec­tion) with 1″ square drive (up to 1000 Nm) or 1.5″ square drive (up to 2400 Nm)
  • Spring output with 50 mm spring deflec­tion, available with 1″ square drive (up to 1000 Nm) or 1.5″ square drive (up to 2400 Nm)
Data sheet DS 80–130 (PDF, 327KB)
Handschrauber DSH 26